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            <div class="post-toc animated"><ol class="nav"><li class="nav-item nav-level-1"><a class="nav-link" href="#%E4%B8%80%E3%80%81-NFS-%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA"><span class="nav-text">一、 NFS 环境搭建</span></a><ol class="nav-child"><li class="nav-item nav-level-2"><a class="nav-link" href="#1-NFS-%E7%AE%80%E4%BB%8B"><span class="nav-text">1.  NFS 简介</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#2-NFS-%E6%90%AD%E5%BB%BA"><span class="nav-text">2.  NFS 搭建</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#2-1-%E6%9F%A5%E7%9C%8B%E6%98%AF%E5%90%A6%E5%B7%B2%E5%AE%89%E8%A3%85"><span class="nav-text">2.1 查看是否已安装</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#2-2-%E5%AE%89%E8%A3%85-NFS"><span class="nav-text">2.2 安装 NFS </span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#2-3-NFS-%E5%85%B1%E4%BA%AB%E7%9B%AE%E5%BD%95"><span class="nav-text">2.3  NFS 共享目录</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#2-4-NFS-%E6%9C%8D%E5%8A%A1%E9%85%8D%E7%BD%AE"><span class="nav-text">2.4  NFS 服务配置</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#2-5-%E9%87%8D%E5%90%AF-NFS-%E6%9C%8D%E5%8A%A1"><span class="nav-text">2.5 重启 NFS 服务</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#2-6-%E6%9C%AC%E5%9C%B0%E6%8C%82%E8%BD%BD%E4%B8%8E%E5%8D%B8%E8%BD%BD%E5%85%B1%E4%BA%AB%E7%9B%AE%E5%BD%95"><span class="nav-text">2.6 本地挂载与卸载共享目录</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#2-7-%E6%9F%A5%E7%9C%8B-NFS-%E5%85%B1%E4%BA%AB%E7%9B%AE%E5%BD%95"><span class="nav-text">2.7 查看 NFS 共享目录</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#2-8-%E6%A3%80%E6%9F%A5-NFS-%E6%98%AF%E5%90%A6%E5%90%AF%E5%8A%A8"><span class="nav-text">2.8 检查 NFS 是否启动</span></a></li></ol></li></ol></li><li class="nav-item nav-level-1"><a class="nav-link" href="#%E4%BA%8C%E3%80%81NFS%E5%8A%9F%E8%83%BD%E6%B5%8B%E8%AF%95"><span class="nav-text">二、NFS功能测试</span></a><ol class="nav-child"><li class="nav-item nav-level-2"><a class="nav-link" href="#1-ubuntu%E6%9C%AC%E5%9C%B0%E6%B5%8B%E8%AF%95"><span class="nav-text">1. ubuntu本地测试</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#1-1-%E5%9C%A8%E5%85%B1%E4%BA%AB%E7%9B%AE%E5%BD%95%E5%88%9B%E5%BB%BA%E6%B5%8B%E8%AF%95%E6%96%87%E4%BB%B6"><span class="nav-text">1.1 在共享目录创建测试文件</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#1-2-%E6%8C%82%E8%BD%BDNFS%E5%85%B1%E4%BA%AB%E7%9B%AE%E5%BD%95"><span class="nav-text">1.2 挂载NFS共享目录</span></a></li></ol></li><li class="nav-item nav-level-2"><a class="nav-link" href="#2-linux%E5%BC%80%E5%8F%91%E6%9D%BF%E6%B5%8B%E8%AF%95"><span class="nav-text">2. linux开发板测试</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#2-1-%E5%BC%80%E5%8F%91%E6%9D%BFip%E9%85%8D%E7%BD%AE"><span class="nav-text">2.1 开发板ip配置</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#2-2-%E6%8C%82%E8%BD%BD%E5%85%B1%E4%BA%AB%E7%9B%AE%E5%BD%95%E5%88%B0%E5%BC%80%E5%8F%91%E6%9D%BF"><span class="nav-text">2.2 挂载共享目录到开发板</span></a></li></ol></li><li class="nav-item nav-level-2"><a class="nav-link" href="#3-windows%E6%8C%82%E8%BD%BD%E6%B5%8B%E8%AF%95"><span class="nav-text">3. windows挂载测试</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#3-1-%E5%90%AF%E5%8A%A8windows%E7%9A%84NFS%E6%9C%8D%E5%8A%A1"><span class="nav-text">3.1 启动windows的NFS服务</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#3-2-%E6%8C%82%E8%BD%BDnfs%E7%9B%AE%E5%BD%95"><span class="nav-text">3.2 挂载nfs目录</span></a></li></ol></li></ol></li></ol></div>
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          LV02-03-网络环境-03-NFS环境搭建
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    <div class="post-body" itemprop="articleBody"><p>本文主要网络环境的搭建——NFS环境的相关笔记，若笔记中有错误或者不合适的地方，欢迎批评指正😃。</p>
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<details class="folding-tag" blue><summary> 点击查看使用工具及版本 </summary>
              <div class='content'>
              <table>    <tr>        <td align="center" rowspan="5">PC端开发环境</td>        <td align="center" width=150px>Windows</td>        <td align="left">Windows11</td>    </tr>    <tr>        <td align="center">Ubuntu</td>        <td align="left">Ubuntu20.04.6的64位版本（一开始使用的是16.04版本，后来进行了升级）</td>      </tr>    <tr>        <td align="center">VMware® Workstation 17 Pro</td>        <td align="left">17.0.0 build-20800274</td>      </tr>    <tr>        <td align="center">终端软件</td>        <td align="left">MobaXterm(Professional Edition v23.0 Build 5042 (license))</td>    </tr>    <tr>        <td align="center">Win32DiskImager</td>        <td align="left">Win32DiskImager v1.0</td>      </tr>    <tr>        <td align="center" rowspan="3">Linux开发板环境</td>        <td align="center">Linux开发板</td>        <td align="left">正点原子 i.MX6ULL Linux 阿尔法开发板</td>      </tr>    <tr>        <td align="center">uboot</td>        <td align="left">NXP官方提供的uboot，NXP提供的版本为uboot-imx-rel_imx_4.1.15_2.1.0_ga(使用的uboot版本为U-Boot 2016.03)</td>      </tr>    <tr>        <td align="center">linux内核</td>        <td align="left">linux-4.15(NXP官方提供)</td>      </tr></table>
              </div>
            </details>

<details class="folding-tag" blue><summary> 点击查看本文参考资料 </summary>
              <div class='content'>
              <table>    <tr>        <td align="center">分类</td>        <td align="center">网址</td>        <td align="center">说明</td>    </tr>    <tr>        <td align="center" rowspan="5">官方网站</td>        <td align="left"><a href="https://www.arm.com/" target="_blank">https://www.arm.com/</a></td>        <td align="left">ARM官方网站，在这里我们可以找到Cotex-Mx以及ARMVx的一些文档</td>    </tr>    <tr>        <td align="left"><a href="https://www.nxp.com.cn/" target="_blank">https://www.nxp.com.cn/ </a></td>        <td align="left">NXP官方网站</td>    </tr>    <tr>        <td align="left"><a href="https://www.nxpic.org.cn/" target="_blank">https://www.nxpic.org.cn/</a></td><td align="left">NXP 官方社区</td>    </tr>    <tr>        <td align="left"><a href="https://u-boot.readthedocs.io/en/latest/" target="_blank">https://u-boot.readthedocs.io/en/latest/</a></td><td align="left">u-boot官网</td>    </tr>    <tr>        <td align="left"><a href="https://www.kernel.org/" target="_blank">https://www.kernel.org/</a></td><td align="left">linux内核官网</td>    </tr></table>
              </div>
            </details>

<details class="folding-tag" blue><summary> 点击查看相关文件下载 </summary>
              <div class='content'>
              <table>    <tr>        <td align="center">分类</td>        <td align="center">网址</td>        <td align="center">说明</td>    </tr>    <tr>        <td align="center" rowspan="4">NXP</td>        <td align="left"><a href="https://github.com/nxp-imx" target="_blank">https://github.com/nxp-imx</a></td>        <td align="left">NXP imx开发资源GitHub组织，里边会有u-boot和linux内核的仓库</td>    </tr>    <tr>        <td align="left"><a href="https://elixir.bootlin.com/linux/latest/source" target="_blank">https://elixir.bootlin.com/linux/latest/source</a></td>        <td align="left">在线阅读linux kernel源码</td>    </tr>    <tr>        <td align="left"><a href="https://github.com/nxp-imx/linux-imx/releases/tag/rel_imx_4.1.15_2.1.0_ga" target="_blank">nxp-imx/linux-imx/releases/tag/rel_imx_4.1.15_2.1.0_ga</a></td>        <td align="left">NXP linux内核仓库tags中的rel_imx_4.1.15_2.1.0_ga</td>    </tr>    <tr>        <td align="left"><a href="https://github.com/nxp-imx/uboot-imx/releases/tag/rel_imx_4.1.15_2.1.0_ga" target="_blank">nxp-imx/uboot-imx/releases/tag/rel_imx_4.1.15_2.1.0_ga</a></td>        <td align="left">NXP u-boot仓库tags中的rel_imx_4.1.15_2.1.0_ga</td>    </tr>    <tr>        <td align="center" rowspan="2">I.MX6ULL</td>        <td align="left"><a href="https://www.nxp.com.cn/docs/en/data-sheet/IMX6ULLIEC.pdf" target="_blank">i.MX 6ULL Applications Processors for Industrial Products</a></td>        <td align="left">I.MX6ULL 芯片手册（datasheet，可以在线查看）</td>    </tr>    <tr>        <td align="left"><a href="https://www.nxp.com.cn/webapp/Download?colCode=IMX6ULLRM&lang_cd=zh" target="_blank">i.MX 6ULL Applications ProcessorReference Manual</a></td>        <td align="left">I.MX6ULL 参考手册（下载后才能查看，需要登录NXP官网）</td>    </tr></table>
              </div>
            </details>

<p>前边我们已经可以实现开发板、windows和linux开发板互相ping通了，接下来我们了解一下在ubuntu搭建NFS环境。</p>
<h1 id="一、-NFS-环境搭建"><a href="#一、-NFS-环境搭建" class="headerlink" title="一、 NFS 环境搭建"></a><font size=3>一、 NFS 环境搭建</font></h1><h2 id="1-NFS-简介"><a href="#1-NFS-简介" class="headerlink" title="1.  NFS 简介"></a><font size=3>1.  NFS 简介</font></h2><p>NFS （ Network File System ，网络文件系统），是由 SUN 公司研制的 UNIX 表示层协议( presentation layer protocol )，基于 UDP&#x2F;IP ，使用 nfs 能够在不同计算机之间通过网络进行文件共享，能使使用者访问网络上别处的文件就像在使用自己的计算机一样。我们可以在 Ubuntu 上制作开发板的根文件系统，然后使用 NFS 来加载根文件系统到开发板的 DDR 上。</p>
<p>NFS 可以将远程的计算机磁盘挂载到本地，像本地磁盘一样操作，文件还是在服务器中，只是服务器将文件共享给了客户端，客户端实际并没有这些文件。就像我们使用的网盘一样，文件在网盘中，在本地的电脑中实际并不存在，但是我们可以查看这些文件。</p>
<h2 id="2-NFS-搭建"><a href="#2-NFS-搭建" class="headerlink" title="2.  NFS 搭建"></a><font size=3>2.  NFS 搭建</font></h2><h3 id="2-1-查看是否已安装"><a href="#2-1-查看是否已安装" class="headerlink" title="2.1 查看是否已安装"></a><font size=3>2.1 查看是否已安装</font></h3><p>在终端执行以下命令：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">dpkg -s nfs-kernel-server</span><br></pre></td></tr></table></figure>

<p>若是没有安装的话则会有以下提醒：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">dpkg-query: 系统没有安装软件包 nfs-kernel-server，因而没有相关的信息</span><br><span class="line">使用 dpkg --info (= dpkg-deb --info) 来检测打包好的文件</span><br></pre></td></tr></table></figure>

<h3 id="2-2-安装-NFS"><a href="#2-2-安装-NFS" class="headerlink" title="2.2 安装 NFS "></a><font size=3>2.2 安装 NFS </font></h3><p>在终端执行以下命令：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">sudo apt-get install nfs-kernel-server</span><br></pre></td></tr></table></figure>

<h3 id="2-3-NFS-共享目录"><a href="#2-3-NFS-共享目录" class="headerlink" title="2.3  NFS 共享目录"></a><font size=3>2.3  NFS 共享目录</font></h3><p>接下来我们创建一个目录用于 NFS 共享服务：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">sudo mkdir -p /home/sumu/4nfs </span><br><span class="line">sudo chmod -R 777 /home/sumu/4nfs/</span><br></pre></td></tr></table></figure>

<h3 id="2-4-NFS-服务配置"><a href="#2-4-NFS-服务配置" class="headerlink" title="2.4  NFS 服务配置"></a><font size=3>2.4  NFS 服务配置</font></h3><p>在终端执行以下命令打开相关配置文件：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">sudo vi /etc/exports</span><br></pre></td></tr></table></figure>

<p>然后在文件的尾部添加以下内容：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">/home/sumu/4nfs *(rw,sync,no_subtree_check,no_root_squash)</span><br></pre></td></tr></table></figure>

<ul>
<li><p>&#x2F;home&#x2F;sumu&#x2F;4nfs 是 nfs 服务器的工作目录，即客户端要访问的文件需要放到该目录下。</p>
</li>
<li><p>* 表示允许所有的网络段访问。</p>
</li>
<li><p>rw 表示访问者具有可读写权限。</p>
</li>
<li><p>sync 表示将缓存写入设备中，可以说是同步缓存的意思。</p>
</li>
<li><p>no_subtree_check  如果共享 &#x2F;usr&#x2F;bin 之类的子目录时， NFS 不检查父目录的权限（默认）</p>
</li>
<li><p>no_root_squash 表示访问者具有 root 权限。</p>
</li>
</ul>
<p>【注意】</p>
<p>（1） ubuntu17.10  之后的版本 nfs  默认只支持协议 3 和 4 ，但后续我们使用的 uboot(2013.01)  默认使用协议 2 ，所以需要在 &#x2F;etc&#x2F;default&#x2F;nfs-kernel-server  文件末尾加一句如下内容：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">RPCNFSDOPTS=&quot;--nfs-version 2,3,4 --debug --syslog&quot;</span><br></pre></td></tr></table></figure>

<p>然后重启 nfs  服务即可。</p>
<p>（2）配置文件权限的 () 里面不能有空格。</p>
<h3 id="2-5-重启-NFS-服务"><a href="#2-5-重启-NFS-服务" class="headerlink" title="2.5 重启 NFS 服务"></a><font size=3>2.5 重启 NFS 服务</font></h3><p>在终端执行以下命令：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">sudo /etc/init.d/nfs-kernel-server restart</span><br><span class="line"><span class="meta prompt_"># </span><span class="language-bash">或者</span></span><br><span class="line">sudo service nfs-kernel-server restart</span><br></pre></td></tr></table></figure>

<p>【注意】在有的资料中看到以后每次重新打开 ubuntu  若要使用 nfs  都需要重启，在这里记录一下，后边遇到问题，可以首先尝试该种方法。</p>
<h3 id="2-6-本地挂载与卸载共享目录"><a href="#2-6-本地挂载与卸载共享目录" class="headerlink" title="2.6 本地挂载与卸载共享目录"></a><font size=3>2.6 本地挂载与卸载共享目录</font></h3><ul>
<li>挂载</li>
</ul>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">sudo mount -t nfs localhost:/home/sumu/4nfs /mnt/nfs_temp/</span><br></pre></td></tr></table></figure>

<ul>
<li>卸载</li>
</ul>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">sudo umount /mnt/nfs_temp/</span><br></pre></td></tr></table></figure>

<h3 id="2-7-查看-NFS-共享目录"><a href="#2-7-查看-NFS-共享目录" class="headerlink" title="2.7 查看 NFS 共享目录"></a><font size=3>2.7 查看 NFS 共享目录</font></h3><p>在终端执行以下命令：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">showmount -e</span><br></pre></td></tr></table></figure>

<p>若是前边配置没有问题，则会显示如下信息：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">Export list for vm:</span><br><span class="line">/home/sumu/4nfs *</span><br></pre></td></tr></table></figure>

<details class="folding-tag" blue><summary> 点击查看可能出现的问题 </summary>
              <div class='content'>
              <p>执行这个命令的时候可能会有如下提示：</p><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">Command &#x27;showmount&#x27; not found, but can be installed with:</span><br><span class="line">sudo apt install nfs-common</span><br></pre></td></tr></table></figure><p>此时我们按照提示安装相关服务即可：</p><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">sudo apt install nfs-common</span><br></pre></td></tr></table></figure>
              </div>
            </details>

<h3 id="2-8-检查-NFS-是否启动"><a href="#2-8-检查-NFS-是否启动" class="headerlink" title="2.8 检查 NFS 是否启动"></a><font size=3>2.8 检查 NFS 是否启动</font></h3><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">sudo systemctl status nfs-server</span><br></pre></td></tr></table></figure>

<p>若 NFS 服务已经启动，则会有以下提示信息：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br></pre></td><td class="code"><pre><span class="line">● nfs-server.service - NFS server and services</span><br><span class="line">     Loaded: loaded (/lib/systemd/system/nfs-server.service; enabled; vendor pr&gt;</span><br><span class="line">    Drop-In: /run/systemd/generator/nfs-server.service.d</span><br><span class="line">             └─order-with-mounts.conf</span><br><span class="line">     Active: active (exited) since Wed 2022-08-17 21:18:16 CST; 13min ago</span><br><span class="line">    Process: 8515 ExecStartPre=/usr/sbin/exportfs -r (code=exited, status=0/SUC&gt;</span><br><span class="line">    Process: 8516 ExecStart=/usr/sbin/rpc.nfsd (code=exited, status=0/SUCCESS)</span><br><span class="line">   Main PID: 8516 (code=exited, status=0/SUCCESS)</span><br><span class="line">        CPU: 15ms</span><br><span class="line"></span><br><span class="line">8月 17 21:18:16 vm systemd[1]: Starting NFS server and services...</span><br><span class="line">8月 17 21:18:16 vm systemd[1]: Finished NFS server and services.</span><br><span class="line"></span><br></pre></td></tr></table></figure>

<h1 id="二、NFS功能测试"><a href="#二、NFS功能测试" class="headerlink" title="二、NFS功能测试"></a><font size=3>二、NFS功能测试</font></h1><h2 id="1-ubuntu本地测试"><a href="#1-ubuntu本地测试" class="headerlink" title="1. ubuntu本地测试"></a><font size=3>1. ubuntu本地测试</font></h2><h3 id="1-1-在共享目录创建测试文件"><a href="#1-1-在共享目录创建测试文件" class="headerlink" title="1.1 在共享目录创建测试文件"></a><font size=3>1.1 在共享目录创建测试文件</font></h3><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">cd /home/sumu/4nfs  # 进入到服务器工作目录</span><br><span class="line">sudo touch test.c   # 创建一个新文件</span><br></pre></td></tr></table></figure>

<p>创建的文件内容如下：</p>
<figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#<span class="keyword">include</span> <span class="string">&lt;stdio.h&gt;</span></span></span><br><span class="line"><span class="type">int</span> <span class="title function_">main</span><span class="params">(<span class="type">int</span> argc, <span class="type">const</span> <span class="type">char</span>* argv[])</span></span><br><span class="line">&#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<h3 id="1-2-挂载NFS共享目录"><a href="#1-2-挂载NFS共享目录" class="headerlink" title="1.2 挂载NFS共享目录"></a><font size=3>1.2 挂载NFS共享目录</font></h3><figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">cd ~       # 回到家目录</span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_"># </span><span class="language-bash">使用 nfs 挂载工作目录到 /mnt</span> </span><br><span class="line">sudo mkdir -p /mnt/nfs_temp</span><br><span class="line">sudo mount -t nfs localhost:/home/sumu/4nfs /mnt/nfs_temp </span><br><span class="line"><span class="meta prompt_"></span></span><br><span class="line"><span class="meta prompt_"># </span><span class="language-bash">查看是否挂载成功</span></span><br><span class="line">ls /mnt/nfs_temp</span><br></pre></td></tr></table></figure>

<p>若显示有 test.c文件，且内容如下：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV02-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/LV02-03-%E7%BD%91%E7%BB%9C%E7%8E%AF%E5%A2%83-03-NFS%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20240829073436967.png" alt="image-20240829073436967" style="zoom: 80%;" />



<p>那么表示我们的 NFS 服务安装配置成功。</p>
<h2 id="2-linux开发板测试"><a href="#2-linux开发板测试" class="headerlink" title="2. linux开发板测试"></a><font size=3>2. linux开发板测试</font></h2><p>开发板中是正点原子出厂系统，肯定是有tftp功能的，但是其实我们经常会再uboot中使用tftp下载linux内核镜像，然后启动内核，一般来说官方的uboot和linux都应该是支持的。</p>
<h3 id="2-1-开发板ip配置"><a href="#2-1-开发板ip配置" class="headerlink" title="2.1 开发板ip配置"></a><font size=3>2.1 开发板ip配置</font></h3><p>按照上一节《LV02-03-网络环境-01-网络开发环境搭建》配置好uboot、开发板、windows的IP，使其三者可以互相ping通。三者的IP如下：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">开发板 IP   ： 192.168.10.109</span><br><span class="line">虚拟机 IP   ： 192.168.10.108</span><br><span class="line">电脑网口的 IP： 192.168.10.100</span><br></pre></td></tr></table></figure>

<h3 id="2-2-挂载共享目录到开发板"><a href="#2-2-挂载共享目录到开发板" class="headerlink" title="2.2 挂载共享目录到开发板"></a><font size=3>2.2 挂载共享目录到开发板</font></h3><p>一般来说我们搭建 NFS 环境也是为了能将文件从 Ubuntu 传输到我们的 linux 开发板，当我们配置好 Linux 开发板和 ubuntu 的网络环境，两者之间互相可以 ping 通的时候，我们可以这样来实现文件的传输。</p>
<p>查看NFS服务器的共享目录：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">showmount -e 192.168.10.108</span><br></pre></td></tr></table></figure>

<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV02-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/LV02-03-%E7%BD%91%E7%BB%9C%E7%8E%AF%E5%A2%83-03-NFS%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20240831105141495.png" alt="image-20240831105141495" style="zoom: 60%;" />

<p>然后在开发板的终端中执行：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">mkdir -p ~/nfs_temp # 创建临时挂载目录</span><br><span class="line">mount -t nfs -o nolock,nfsvers=3 &lt;Ubuntu_IP&gt;:&lt;Ubuntu_NFS_dir&gt; ~/nfs_temp/</span><br><span class="line">df                 # 查看挂载目录</span><br><span class="line">umount ~/nfs_temp/ # 卸载挂载目录</span><br></pre></td></tr></table></figure>

<p>这样我们便可以将 ubuntu 中的 Ubuntu_NFS_dir 目录也就是 NFS 共享目录下的文件挂载到 Linux 开发板的 ~&#x2F;nfs_temp&#x2F; 中，我们可以直接在 ~&#x2F;nfs_temp&#x2F; 中拷贝我们需要的文件。例如我们在终端执行：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">mkdir -p ~/nfs_temp</span><br><span class="line">mount -t nfs -o nolock,nfsvers=3 192.168.10.108:/home/sumu/4nfs ~/nfs_temp</span><br><span class="line">df                 # 查看挂载目录</span><br><span class="line">ls ~/nfs_temp</span><br></pre></td></tr></table></figure>

<p>若是挂载成功，那么便会有以下信息：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV02-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/LV02-03-%E7%BD%91%E7%BB%9C%E7%8E%AF%E5%A2%83-03-NFS%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20240829074322114.png" alt="image-20240829074322114" style="zoom:49%;" />

<p>中间有一次目录中什么也没有是因为我之前挂载过，但是吧目录删掉了，也把服务器的文件删了，重新添加就好了。</p>
<h2 id="3-windows挂载测试"><a href="#3-windows挂载测试" class="headerlink" title="3. windows挂载测试"></a><font size=3>3. windows挂载测试</font></h2><h3 id="3-1-启动windows的NFS服务"><a href="#3-1-启动windows的NFS服务" class="headerlink" title="3.1 启动windows的NFS服务"></a><font size=3>3.1 启动windows的NFS服务</font></h3><ul>
<li>（1）【控制面板】&rarr;【程序】&rarr;【启用或者关闭Windows功能】</li>
</ul>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV02-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/LV02-03-%E7%BD%91%E7%BB%9C%E7%8E%AF%E5%A2%83-03-NFS%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20230718225611215.png" alt="image-20230718225611215" style="zoom:50%;" />

<ul>
<li>（2）【勾选NFS服务】&rarr;【确定】</li>
</ul>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV02-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/LV02-03-%E7%BD%91%E7%BB%9C%E7%8E%AF%E5%A2%83-03-NFS%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20230718231756685.png" alt="image-20230718231756685" style="zoom:50%;" />

<ul>
<li>（3）重启系统</li>
</ul>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV02-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/LV02-03-%E7%BD%91%E7%BB%9C%E7%8E%AF%E5%A2%83-03-NFS%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20230718230118726.png" alt="image-20230718230118726" style="zoom: 33%;" />

<h3 id="3-2-挂载nfs目录"><a href="#3-2-挂载nfs目录" class="headerlink" title="3.2 挂载nfs目录"></a><font size=3>3.2 挂载nfs目录</font></h3><ul>
<li>（1）【打开文件资源管理器】&rarr;【映射网络驱动器】</li>
</ul>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV02-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/LV02-03-%E7%BD%91%E7%BB%9C%E7%8E%AF%E5%A2%83-03-NFS%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20230718231923207.png" alt="image-20230718231923207" style="zoom:30%;" />

<ul>
<li>（2）【选择驱动器编号】&rarr;【输入地址】</li>
</ul>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV02-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/LV02-03-%E7%BD%91%E7%BB%9C%E7%8E%AF%E5%A2%83-03-NFS%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20240829074700842.png" alt="image-20240829074700842" style="zoom:50%;" />

<p>地址的格式为：</p>
<figure class="highlight shell"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">\\&lt;ubuntu_IP&gt;\&lt;nfs_dir_path&gt;</span><br></pre></td></tr></table></figure>

<ul>
<li>（3）若是成功挂载则会有如下显示：</li>
</ul>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV02-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/LV02-03-%E7%BD%91%E7%BB%9C%E7%8E%AF%E5%A2%83-03-NFS%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20240829074754722.png" alt="image-20240829074754722" style="zoom:50%;" />

<p>我们打开看一下就会发现有如下文件：</p>
<img data-src="https://fanhua-picture.oss-cn-hangzhou.aliyuncs.com/01%E5%B5%8C%E5%85%A5%E5%BC%8F%E5%BC%80%E5%8F%91/02IMX6ULL%E5%B9%B3%E5%8F%B0/LV02-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83/LV02-03-%E7%BD%91%E7%BB%9C%E7%8E%AF%E5%A2%83-03-NFS%E7%8E%AF%E5%A2%83%E6%90%AD%E5%BB%BA/img/image-20240829074854698.png" alt="image-20240829074854698" style="zoom:50%;" />


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    <p><span>文章标题:</span><a href="/post/a51bf912.html">LV02-03-网络环境-03-NFS环境搭建</a></p>
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